scd41-embedded 0.1.0

A platform-agnostic embedded-hal driver for the Sensirion SCD41 CO2/temperature/humidity sensor (with optional async support).
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# scd41-embedded

A platform-agnostic, `no_std` driver for the **Sensirion SCD41** CO₂ / temperature / humidity sensor, built on the [`embedded-hal`](https://crates.io/crates/embedded-hal) traits.

This crate provides:

- Blocking (synchronous) API using `embedded-hal` 1.0 (`I2c` + `DelayNs`)
- Optional **async I2C + delay API** behind the `async` feature using `embedded-hal-async`

## Features

- `async`: enables async I2C + delay support via `embedded-hal-async`.

## Blocking example

```rust,ignore
use scd41_embedded::Scd41;

# let i2c = todo!("provide an embedded-hal I2C implementation");
# let delay = todo!("provide an embedded-hal DelayNs implementation");

let mut scd = Scd41::new(i2c, delay);

scd.start_periodic_measurement()?;

loop {
    if scd.data_ready()? {
        let m = scd.measurement()?;
        // m.co2_ppm, m.temperature_c, m.relative_humidity_percent
        break;
    }
}
# Ok::<(), scd41_embedded::Error<_>>(())
```

## Async example

Enable the feature:

```toml
[dependencies]
scd41-embedded = { version = "0.1", features = ["async"] }
```

```rust,ignore
use scd41_embedded::r#async::Scd41Async;

# let i2c = todo!("provide an embedded-hal-async I2C implementation");
# let delay = todo!("provide an embedded-hal-async DelayNs implementation");

let mut scd = Scd41Async::new(i2c, delay);

scd.start_periodic_measurement().await?;

loop {
    if scd.data_ready().await? {
        let m = scd.measurement().await?;
        break;
    }
}
# Ok::<(), scd41_embedded::Error<_>>(())
```

## License

MIT